pho·​to·​de·​grad·​able ˌfō-tō-di-ˈgrā-də-bəl How to pronounce photodegradable (audio)
: chemically degradable by the action of light
photodegradable plastics

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Example Sentences

Recent Examples on the Web Oxo-degradable plastic breaks down faster under exposure to heat and light and photodegradable plastic breaks down more easily in sunlight. Grace Wu, Good Housekeeping, 11 July 2022

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photodegradable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Word History

First Known Use

1971, in the meaning defined above

Time Traveler
The first known use of photodegradable was in 1971

Dictionary Entries Near photodegradable

Cite this Entry

“Photodegradable.” Dictionary, Merriam-Webster, Accessed 30 Sep. 2022.

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